Re: Auto changing problem
This weekend I fitted a new rad, water pump, timing & alternator belts, and topped up the silicone fluid in the viscous fan coupling. I also tried to flush the cooling system, which is a pain if you can't use a hose... I was using DI water (cleaner than RO): top up, run up to temp, drain for 20 minutes, repeat. I would say 98% of the water coming out was clean, but it seems impossible to get the very last bit of milkshake out. After flushing about 5 times, I topped up with the Toyota pink coolant. There is still a very small amount of milkshake floating on top that I can't seem to get out. I might get another 5litre of coolant, and drain & top up one more time.
Then on to the gearbox. Initially I thought I have been very lucky and only a small amount of coolant got into the box. When I drew out 5 litres of atf with an oil extractor it looked like there was only about a litre of milkshake floating on top of the atf which was clear. I added back 5litre of fresh atf and took it round the block. Let it cool down a little bit and then drew some more atf... all 5litre was pink milkshake
I have the truck booked in for a box flush on Wednesday, but knowing that I will be towing a camper trailer around in all sorts of conditions (including soft sand), I'm now wondering whether I shouldn't just get the box reconditioned?
What do you guys think: Flush only? Or don't waste money on the flush (£200) and just get the box reconditioned (£?)?